Gustav the Swampert

Gustav is a Swampert owned by Manic in Manic's Derpy Emerald that is notable for being the first Pokemon character Manic created. He was obtained as a Mudkip and evolved into Marshtomp before reaching his final stage as a Swampert. Gustav is known for being calm and rational most of the time, with a decent sense of humor, and seems to understand and empathize with Manic well on an emotional level. He can speak Spanish but, for Manic's sake speaks English. In many ways, he is a lot like Manic. As Manic's starter, he stayed with Manic for his whole journey and ended up helping him defeat the Pokemon League.

Gustav's moveset includes Tackle, Growl, Water Gun, Mud Slap, Surf, Waterfall, Earthquake, Ice Beam and Brick Break.